Cryptic crossword

[WestOz]

They must be strong enough to take catches (7/4)
Apologies for incorrect procedure. If answer is fishing nets?, then this would mean that: I would be initial letter to "Sleep in it, but it's not suitable" (5) N, initial letter to "Parts a loser plays" (5) T, Initial letter to Artisits to be found in chests?"(7).
Thank you to people who answered previously.

[Chrysaor]

Sleep in it etc is 'inapt' (i-nap-t).

However, 'parts a loser plays' looks more like 'roles' - anagram of loser.